Japan & South Korea eSIM — reviews & details
Japan & South Korea 1GB/Day · 1 GB/day · 1 days
620 reviews
Coverage & networks
- Japan KDDI/au 5G
- South Korea SKTelecom 5G LG Uplus 5G
Traveller reviews
Fatima V.
Thailand · Oct 2025
Good coverage in the city, a bit patchy in remote areas. Signal held up well on trains and in rural areas.
James
GotoeSIM Support
· 9 months ago Appreciate you sharing this, Fatima. Glad it mostly worked for you in Japan & South Korea — we're always improving our coverage. Any questions, our team is at esimtopup.io/support. — James
Ananya G.
Philippines · Oct 2025
Did the job without any drama. I kept my normal number for calls while using this for data. Zero regrets.
Tom
GotoeSIM Support
· 9 months ago Thank you so much, Ananya! Delighted the speeds worked well for you. — Tom, eSIM TopUp Support
Sarah C.
Brazil · Oct 2025
Honestly better than buying a local SIM at the airport. Topping up was straightforward when I needed more. Will use eSIM TopUp for my next trip for sure.
Yuki
GotoeSIM Support
· 9 months ago Thank you so much, Sarah! Thrilled it made staying connected effortless. Enjoy your journeys! — Yuki, eSIM TopUp Support
Mei H.
Spain · Oct 2025
Used this on my trip and it worked perfectly. Setup instructions in the app were clear and simple.
Mark
GotoeSIM Support
· 9 months ago Thank you so much, Mei! Thrilled it made staying connected effortless. Come back anytime! – Mark, eSIM TopUp Support
Sofia N.
UAE · Oct 2025
Super easy to set up before I flew out. The QR code arrived instantly by email.
Tom
GotoeSIM Support
· 9 months ago Thanks for sharing, Sofia! So pleased it saved you from roaming bills. Wishing you many more connected adventures! – Tom, eSIM TopUp Support
Aisha C.
UAE · Oct 2025
Did the job without any drama. Speeds were solid for maps, messaging and browsing. Will use eSIM TopUp for my next trip for sure.
Sophie
GotoeSIM Support
· 9 months ago Thank you so much, Aisha! Delighted the speeds worked well for you. We're here whenever you travel again. – Sophie, eSIM TopUp Support
Zoe H.
New Zealand · Oct 2025
Install took me two tries but was fine after that. Data lasted the whole trip with room to spare.
Ingrid
GotoeSIM Support
· 10 months ago Appreciate you sharing this, Zoe. Good to hear it did the job, and we're working to make it even better. Any questions, our team is at esimtopup.io/support. – Ingrid, eSIM TopUp Support
Mohammed C.
South Korea · Oct 2025
Worked fine but took a little while to connect at first. Activation was automatic when I arrived.
Priya
GotoeSIM Support
· 10 months ago So sorry to hear this, Mohammed. We'd love the chance to make this right. Please contact us at esimtopup.io/support and we'll sort it out. – Priya 💜
Arjun C.
Brazil · Oct 2025
First time using an eSIM and it was painless. I kept my normal number for calls while using this for data. Zero regrets.
Omar
GotoeSIM Support
· 10 months ago Thank you so much, Arjun! Wonderful to hear it worked smoothly in Japan & South Korea. — Omar
Olivia S.
Indonesia · Oct 2025
Bought it the night before my flight — smooth process. Activation was automatic when I arrived. Zero regrets.
David
GotoeSIM Support
· 10 months ago Thank you so much, Olivia! Thrilled it made staying connected effortless. — David, eSIM TopUp Support
Camila V.
United Kingdom · Oct 2025
Install took me two tries but was fine after that.
David
GotoeSIM Support
· 10 months ago Appreciate you sharing this, Camila. Good to hear it did the job, and we're working to make it even better. Reach us anytime at esimtopup.io/support if we can help. — David
Kenji C.
Japan · Oct 2025
Great value compared to roaming charges in Japan & South Korea. Topping up was straightforward when I needed more. Exactly as described — no surprises.
Emma
GotoeSIM Support
· 10 months ago Cheers, Kenji! Great to know the setup was quick and easy. – Emma 💜
Noah P.
Netherlands · Oct 2025
Installed in minutes by scanning the QR code. Activation was automatic when I arrived. Exactly as described — no surprises.
Laura
GotoeSIM Support
· 10 months ago Thank you so much, Noah! Love that you were online the moment you landed in Japan & South Korea. – Laura, eSIM TopUp Support
Lucas K.
Switzerland · Oct 2025
Did the job without any drama. Coverage was strong even outside the city.
Laura
GotoeSIM Support
· 10 months ago So glad to hear this, Lucas! Love that you were online the moment you landed in Japan & South Korea. – Laura, eSIM TopUp Support
Priya H.
Mexico · Oct 2025
Honestly better than buying a local SIM at the airport in Japan & South Korea. Topping up was straightforward when I needed more. Would definitely buy again.
David
GotoeSIM Support
· 10 months ago Thanks for sharing, Priya! Love that you were online the moment you landed in Japan & South Korea. Enjoy your journeys! — David, eSIM TopUp Support
Frequently asked questions
How much does the Japan & South Korea eSIM cost?
The Japan & South Korea 1GB/Day plan costs $2.03 for 1 GB/day over 1 days, paid once with no hidden fees.
How do I activate my Japan & South Korea eSIM?
Scan the QR code in your phone settings (Cellular/Mobile → Add eSIM) or tap Install in the eSIM TopUp app. Install on Wi-Fi before your trip; it activates when you arrive in Japan & South Korea.
Will this eSIM work on my phone?
It works on any eSIM-compatible, carrier-unlocked phone — iPhone XS and newer, Google Pixel 3 and newer, and recent Samsung Galaxy models.
Can I keep my regular number?
Yes. The eSIM runs alongside your normal SIM, so you keep your number for calls and texts while using data in Japan & South Korea.
Comments & questions
Marco K. · 1 week ago
How long does the QR code take to arrive after payment?
Beatriz S. · 1 month ago
Does this work on an iPhone 13?
Budi D. · 3 months ago
Will this keep my WhatsApp active with my home number?
Lucas P. · 4 months ago
Is 5G supported or just 4G?
Grace B. · 6 months ago
Thanks, installed with no problems on my Samsung.
Liam L. · 6 months ago
Does the validity start on purchase or on first use?
Beatriz V. · 8 months ago
Which networks does this connect to?
Haruto G. · 9 months ago
Is roaming charged extra or is it all included?
Ryan N. · 9 months ago
Can I use it in nearby countries too?
Ava B. · 10 months ago
Do I need to install it before I travel or after I arrive?
Camila P. · 11 months ago
Can I top up the same eSIM instead of buying a new one?
Sofia B. · 11 months ago
Can I use this for hotspot/tethering?